Home / 65,417.40-98,132.22-18,670.68

Finding the Fourth Proportional to 65,417.40, 98,132.22 and 18,670.68

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Solution

The fourth proportional to 65,417.40, 98,132.22 and 18,670.68 is: 28,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,417.40 : 98,132.22 = 18,670.68 : x
  2. Step 2: Convert to fraction form
    65,417.40/98,132.22 = 18,670.68/x
  3. Step 3: Cross multiply
    65,417.40x = 98,132.22 × 18,670.68
  4. Step 4: Simplify right side
    65,417.40x = 1,832,195,277.31
  5. Step 5: Solve for x
    x = 1,832,195,277.31/65,417.40
  6. Step 6: Final answer
    x = 28,007.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.